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			17 lines
		
	
	
		
			398 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			17 lines
		
	
	
		
			398 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| contract C
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| {
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| 	function f(int8 x) public pure returns (int8) {
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| 		x = 100;
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| 		int8 y;
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| 		unchecked { y = x * 2; }
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| 		assert(y == -56);
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| 		y = x * 100;
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| 		assert(y == 16);
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| 		return y;
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| 	}
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| }
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| // ====
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| // SMTEngine: all
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| // ----
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| // Warning 4984: (136-143): CHC: Overflow (resulting value larger than 127) happens here.\nCounterexample:\n\nx = 100\n = 0\ny = (- 56)\n\nTransaction trace:\nC.constructor()\nC.f(0)
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